I don’t think it’s much like what you describe because the direction is reversed. They say they expect the debtors to sell that investment over the next few years. Potentially they will sell it at a profit.
IANAL but it's not: they could be compelled to return whatever was invested (or however much of it remains). It's pretty unlikely given that it looks like a successful Anthropic investment is perhaps FTX creditors' best chance at decent recovery.